Stable hydrogel compositions including additives
US9655991B2 · kind B2 · utility
3Cited by
107References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2015 |
| Grant date | May 23, 2017 |
| Priority date | — |
| Expiry date | Jul 13, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2430/34
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Dermal filler hydrogel compositions, methods of making them, and methods of using them to treat soft tissue conditions, such as wrinkles, are provided. The compositions contain a crosslinked hyaluronic acid-based polymer and one or more additional ingredients, and are stable to sterilization by heat and/or pressure treatment. The additional ingredients include vasoconstrictive agents, antioxidant agents, such as a ascorbic acid agents, and/or anesthetic agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.